Answer:Here is a real answer unike that other person a source of electric energy
Explanation:
Answer:
The maximum concentration of HCl that can be used is 7.08 M
Explanation:
The reaction that takes place is:
- 2HCl(aq) + Mg → MgCl₂ + H₂
The <u>available moles of Mg are</u>:
- 9.00 g Mg ÷ 24.3 g/mol = 0.370 mol
H₂ gas is produced and fills the balloon. We use PV=nRT <u>to calculate the maximum moles of H₂ that can be produced before the balloon pops off:</u>
- 1.00 atm * 6.00 L = n * 0.082 atm·L·mol⁻¹·K⁻¹ * 318.16 K
Now that we know that we have more than enough moles of Mg to produce 0.230 moles of H₂, we know that HCl is the limiting reactant.
We calculate the<u> required moles of HCl</u>:
- 0.230 mol H₂ *
= 0.460 mol HCl
Now we use C = n/V to <u>calculate the concentration of HCl</u>:
- C = 0.460 mol HCl / 0.065 L = 7.08 M
Answer:
1.3 moles of HNO₃ will be produced
Explanation:
Equation for the reaction:
3NO₂ + H₂O ----> 2HNO₃ + NO
From the equation of the reaction, 3 moles of NO₂ reacts with 1 mole of H₂O to produce 2 moles of HNO₃
Suppose there are 2 moles of NO₂ and 7.0 moles of H₂O in a reactor, the limiting reactant will be NO₂ and H₂O will be in excess since 3 moles of NO₂ reacts with every 1 mole of H₂O.
Since 3 moles of NO₂ reacts to produce 2 moles of HNO₃;
2 moles of NO₂ will react to produce 2/3 * 2 moles HNO₃ = 1.3 moles of HNO₃
Therefore, 1.3 moles of HNO₃ will be produced
<h2><em>If the water is completely evaporated we will get separated sugar from the mixture. If we dissolve the mixture in alcohol we will get the salt separated while sugar will be dissolved in alcohol. After that, the solution is further filtered and salt will be the residue of the solution
</em></h2><h2><em>HOPE IT HELPS (◕‿◕✿)</em></h2>
By the formula, Mass/molecular mass = mol
If you know the number of moles and the molecular mass of Fe2(SO4)3, it gives you this:
(56x2 +(32+4x16)x3)
= 112+ 96x3
=272
then to obtain the mass
molecular mass * mol = mass
therefore,
272 * 5.35 = 759.2
